conwell



M. C. CGNWELL..

hummm olLEn ron ENGINES. APPLICATION FILE|1;AIJ G.\8. ISH.

1,317,961. y Patented oct. 7,1919.l

JNVENTOR.

UNITED STATES* Auxrmaar enana itcnnnemns.

v n n-uni if l Bpexioation of Ltters Patent.

Application mea .iugm 1a, 1917. selig; un. 186.9611. I

To all whom it may concern.'

Be it known that I, MYERS '(l. CoNw-ELL,

a citizen of theUnited States, Y esiding at Larchmont, in the county of estchester 5 and State of New York, have invented new and useful Improvements in Auxiliary Oilers for Engines, of`which the following is a Speciiicatlon." 'Y

This. invention is en apparatus for auto niatically,supplying` lubricating oilto en- 'g'ineaandis particular] designedior the lubrication of automobil; engines, though not limited thereto. E

the-.operation of motor vehicles it has liefen foundffladuisable to maintainsI quantity of lubricating oil in the crank case and wheel case, which o1l is put into circulation by the operation of the engine, to lubricate the parts ofthe latter, and various types of control apparatus have heendesigned to main-v tain a supply o: oil suiicient' for this purpose. In such o es, however, if thejoil/"is" at a given level when the engine is .at/rest, this level will immediately drop froml'one/ o 26v two inches just as soon as'the motoris spart:

ed, olefin 'to the fvolume of oil whichisv carried hytlgie fly wheelfland which is in inculation. At the same time;V if the pet'raick is left open, as is usuall `necessary withan au- 30 tomatlc feed, the oi Willrun out despite the t that the actual oil level mayv be some istance below said cock, and if left open long enough, practically all of the oil,

or at least all of the oil Within reach 'of the 85 fly WheeL-Will be thrown out or lost. `This is, a cause of many burned Aout bearings The reason for theoil being thrown out is that the-churningfaction of `the fly wheel beats up the oil to a frothy condition,` oasi0 ing it to bubble out of the pet cock practically as long as there is any oil left. It is 'this `bubblingV out or froth y Whichrenders -the operation of a vacuum feed system undesirable for the reason that 46 the froth "rises in the air, tube, and the air separating therefrom,

' chamber and causes more oil to feed down.

TheA mainobject ofthe invention is to overcome the'.v foregoing;` objections by providing an au'xiliary'oiling apparatus of the vacuum feed type, which will automatically maintainthe desired oil level in the crank case and other parts, and absolutely prevent' the waste of 011.

i 5154 The invention -will be hereinafter' fully Y manner contiguous to Vatitsnupper end, open to ing of um ou Au1 `enters the vacuum ATENT OFFICE. l

ASSIGNOR TO LAURA E. GONWELL,

set forth and particularly, pointed out `in the claims.

ln the accompanying drawi'n Figure 1 is a diagrammatic View illustrating t 1e invention ap liecl to an engine of the type commonly empoed on the well known 4ortiautonlobile. detail View of the stand pie. Fig. 3` is a diagrammatic view illustratmg a modifica* tion.

desi ,etes t e engine, which may be o .any

nefmi to Fig. 1 of uw d1-win 1o Patented oct. "r, 1919.

1g.4 E is an enlarged suite le or preferred type, and 1.1 the crank i Y case, having the depression 12 in which it is desired to maintain al quantity of oil.

The tank or reservoir I3, oontainin the supply of oil, is supported practice, the'v s arne being provided witha 'gage 14, 'by which the level of oil .in the reservoir may in any suitable` position and 1n accordance with well knownbe ascertained 'at a -lglglancle.V

Leading from the reservoir 13, is a feed pipe' 15, which is connected-.by means ofa T-oou- .e

ottom of the `de1 1essionV 12. 4 The short lmg 16, with a short branch leading to the 4 ranchshould communicatewith the casin'g 12, well below the 'lowest possible working v loue] of the oil, preferably at the hottom ,of the casing, as shown.

the casing 12, is a Supported insui'table stand pipevlf, provided with a vent pipe 18,

the atmosphere, the lower end of the stand pipe being connected bv a short branch ipe 19, with the con` pling 16. .The stan pipe 17 is preferably provided withA a plurality of threaded nipples 20, as shown, to any one of which is connected the air pipe.21, the other end of Wlich is connected to and communicates with the reservoir 13, alcove the level of the oil therein. As illustrated in the drawing, eair pipe coinmunicates with the reservoir The nipples 20, lother by suitable plugs 22.

In practice, the tank 13 is filled to the dethe stand pipe 17 at the same level as in the combined air and taching the air pipe to any one of the ni 18, passes up through pipe depressed portion 12. The level of the oil withinA the casing 11 depends entirely upon the position of the inlet end of the air pipe 21, and this .position may be variedby itr p es 20, to provide high, low or medium leve s, as may be desired. As soon as the engine is put into operation the oil level withln the depression 12 will be appreciably lowered by reason of the quantity of oil taken up by the working parts of the engine, and just as soon as the level drops below the inlet end of pipe 21, air entering the vent pipe 21, into the tank or reservoir 13,l thereby causing additional 'oil to flow to the pocket 12, until the level is again raised above the plane of the inlet end of the pipe: 21. In this manner a constant level of oil is maintained Within the casing 11, and bubbling or frothing of the oil out of said casing is prevented because.

the supply connection is Well below the working level of the oil, and the stand pipe is positioned and connected se as to be unaffected by any agitation of the oil within the casing.

In Fi 3 is illustrated a slight modification in w ich a single pipe is utilized as a oil pipe, said pipe having branches leading respectively to the stand ipe 17 and to the bottom of the casing 12. lin this form, when the oil level drops below any portion of the end.l of pipe 25 where it joins the stand pipe' 17, azir will move upwardly through said pipe 25 into the tank 13, thereby causing a downward feed of the oil. l

Having thus explained the nature of the invention, and described an operative man ner of constructing and using the same, although without attempting to set forth all of the forms in which it ma be made or all of the forms of its use, tie following is claimed 1. An auxiliary oiler of the character' described comprising a casing to be supplied with oil, a stand ing and open to the atmosphere, a conduit leading from the reservoir and havin a branch connected to the casing at a point low thelowest normal working levelo'f oil within the easing,v and a separate branch leading to the stand pipe.

2. An improved auxiliary oiler comprising a casing to be supplied with oil, a stand pipe open to the atmosphere and con'lmunieating with said easing at a point'below the lowest normal working level of the oil Within said casing, an oil reservoir, an oil sup ply conduit leading from the reservoir to said casing, and an'air pipe communicating with said reservoir, said stand pipe having a plurality of nipples positioned to be selectively engaged by said air pipe.

An improved auxiliary oiler comprising a casing to be supplied with oil, saidcas ing being provided with a coupling located below the lowest normal working ievel of the oil within 'said casing, a stand pipe open to the atmosphere, a. conduit connecting said stand pipe with said coupling, an oil reservoir, an oil supply conduit lcadingfrom said from said stand pipe to said reservoir.

In testimony whereof I have hereunto' set hand. my MYERS o. ooNwnLL.

reservoir to said coupling, and an airv pipe spaced from the cas- 

